Printer&#39;s chase.



L. B. PATTERSON. PRINTER'S CHASE. APPLICATION FILE? SEPT. 8.1913.

Ilium Patented May 9,1916.

ziz'fraa segf v J/farneys Folk and State of certain new and useful Prin whereby the .form will not metal'bars weldedtogether or may be cast as a unit and so arranged that they may be 7 almost 3. PATTERSON, F DES MOINES, IOWA.

PRINTERS CHASE.

Specification of Letters Patent.

Patented May a, 1916.

.dpp licatio n filed September 8, 1913. Serial No. 788,752.

T l whom it may concern;

e it known that I, LEMUEL B. PATTER.

United States, and

03,.a citizen of the resident of; Des Moines, 1n the county of er.s Chase, of which the following is a spe fication.

' The obj ct of my invention is toprovide a printers chase of simple, durable and inexpensive constructionyso made that the rectangular Interior opening of the chase, In.

will stand at drawn through so that inking the rectangular spacein which'it lies, and

whereby ordinary furniture and quoins may be used inside -the chase for spacing and locking the form in position.

A further object is to provide a chase of this class that may be made up of straight readily, quickly and easily fitted to a particular printing press.

My invention consists in certain details, in theconstruction, combination and arrangement-of the various parts of thedevice, 'whereby the objects contemplated are attained, *as hereinafter more fully set forth, pointed out in my claims and illustrated in the accompanying drawings, in which the figure shows a perspective view of a preferred form of said chase with a form of. type therein, spaced andflocked by means of ordinary furniture and quoins' 1 The sides are preferably beveled at 12- in the ordinary manner. The outer sur faces of the sides and ends of the form of chase shown form a rectangle, as shown,-

and the inner edges of thesides and ends also form a rectangle, as shown, the inner rectangle, however, being: arranged on lines divergent'from the lines-0f the outer rectangle.

In the form of my invention. illustrated, the chase is made up of straight metal bars l which maybe welded together or cast as a Iowa, have invented a -The extended unit. The side bars 13 and 1 parallel with each other and the end bars 15 and 16 are arranged parallel with each other, the four bars forming a rectangle. In order however to accomplish the par pOSe of my invention and that theinterior opening in the chase may form a rectangle divergent in its outline from the outlines of the rectangular space which the chase is designed to occupy on the press bed, the

lower .end of the bar 16 and the left hand end of the bar 14 are extended beyond the bars 14 and 15 respectively.

A chase so constructed will lie in a rectangular space in the press bed and will touch at the extended ends of the members I6 and 14 and at the point where. the chase is clamped in the bed. The outer surface of the and bar 15, at the upper end of the chase, is planed off to rest in a 'plane parallel to the vertical plane of the end of the rectangular space in which the chase lies- The bars 13 and 14 are beveled at 17 and 1 8 so that the rollers in passing over the chase cannot possibly engage a sharp edge. ends of the bars 14 and 16 are designed to' be engaged by thewallsat the bottom and one side of the pressbed in which the chase rests.

Itwill be seen that with whichever form are arranged Y of the chase used, the rectangular interior opening in the chase will be arranged so that when the form is installed in the chase, Y I

as shown in the figure, with ordinary printers furniture and quoins, the rules 20 and the lines of type 21 will lie in lines somewhat divergent from the lines of the path oftravel of the inking rollers. The lower projecting end of the member 14 may be ground or filed off and thereby the chase may be fitted accurately and quickly to the t press bed. The beds of different presses,

even of the;"same-type and make, may varyslightly in the distance between the rails, and a chase ofmy preferred'form will require comparatively little work in filing off the projecting end of the member 14, to lit the chase accurately to the bed. It will readily be seen that this would bevdiflicult andtedious with a solid rectangular outer frame. The lug 22 may be formed on the member 13 for engagement by a clamp forsecuring the chase in the press. It will be noted that the lug 22 is so formed as to eX- tend to the upper end of the press bed and so that its upper edge is in line withithe I line of type or not circumferential.

upper wall of the press bed so that it may be properly engaged by the ordinary clamp used for locking rectangular chases in the lVith the ordinary chase, the form is so' placed that when the roller travels over the type or rules, which are arranged in lines across the form from top to bottom, each each rule is inked and engaged by the roller on the line extending circumferentially around the roller. The roller is frequently cut by-the'rule and somemes injured by the line of type. It is also frequently true in such cases that the ink is taken up along a certain circumferential line and partof the type in the form is not well inked. It is often true, therefore, that the ink is not evenly distributed from the top to the bottom of the line.

'lVheremy improved form of chase is employed, the roller passes over the type and the rules in such a way that the line or path on the roller which is engaged isspiral and On this account the tendency for the rules or lines of type to into the roller verylargely done away with. It 'is also true when my improved m of chase is employed that the ink will -a;t be taken up on a circumferential line. and therefore the ink is very evenly nistrib'uted over the type in the form. Such a construction lengthens the life oft-he in jing roller. At the same time by giving a more even distribution of the inlgit enables the pressman to turn out neater and more perfect printing- Where the form of the chase, made from bars, as shown, comparatively small bar enables the pressbeing so shaped that is used, the filing of one man to quickly and accurately fit the chase to the press.

It will be understood that some changes may be made int-he details of the construction of my chase and it is my intention to cover by this 'application any such changes which may be included within the scope of the following claims.

I claim as my invention:

1; A printers chase comprising parallel side members and parallel end members, one end member having a longitudinal extension, one side member having a longitudinal extension, said extensions being on the same side but at opposite ends of the chase,-and the chase may be set diagonally in a rectangular'press bed, with said extensions resting flush against the side and end walls of the press bed, and v--'itb. one end member of the chase engaging the side wall of the press'bed near its upper end, and one side -member engaging the upper side wall of said bed.

"2. A printers chase con'iprising parallel side members and parallel end members, one end member having a longitudinal extension,

one side member having a longitudinal extension, said extensions being on the same side but. at opposite ends of the chase, and being so shaped that the chase may be set diagonally in a rectangular press bed, with said extensions restingtiush-against the side and end walls of the press bed, and with one" end member of the chase engaging the side wall of the press bed near its upperfend, and one side member engaging the upper side wall of said bed, and a beveled member on the side frame member farthest from said. extension having oneedge. parallel with the press bed wall.

Des'Moines, Iowa, September 5, 1913.

LEMUEL B. PATTERSON. Witnesses:

S. ROBINSON,

'lVILr. Fmammx. 

